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In computer systems a loader is the part of an operating system that is responsible for loading programs and libraries.It is one of the essential stages in the process of starting a program, as it places programs into memory and prepares them for execution.
A bootloader, also spelled as boot loader [1] [2] or called bootstrap loader, is a computer program that is responsible for booting a computer. If it also provides an interactive menu with multiple boot choices then it's often called a boot manager .
Loader (computing) LOADER.EXE, an auto-start program loader optionally used in the startup process of Microsoft Windows ME; Loader (surname) Fast loader; Speedloader; Boot loader. LOADER.COM (aka "NEWLDR"), a multi-boot loader shipping with various Digital Research, Novell, IMS, Caldera, etc. DOS-based operating systems like Multiuser DOS and ...
When a system on a chip (SoC) enters suspend to RAM mode, in many cases, the processor is completely off while the RAM is put in self refresh mode. At resume, the boot ROM is executed again and many boot ROMs are able to detect that the SoC was in suspend to RAM and can resume by jumping directly to the kernel which then takes care of powering on again the peripherals which were off and ...
The first program loaded into RAM is called a first-stage boot loader, and the program it loads is called a second-stage boot loader. On many embedded CPUs, the CPU built-in boot ROM , sometimes called the zero-stage boot loader, [ 50 ] can find and load first-stage boot loaders.
GNU GRUB (short for GNU GRand Unified Bootloader, commonly referred to as GRUB) is a boot loader package from the GNU Project.GRUB is the reference implementation of the Free Software Foundation's Multiboot Specification, which provides a user the choice to boot one of multiple operating systems installed on a computer or select a specific kernel configuration available on a particular ...
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On system with BIOS firmware, the BIOS invokes MBR boot code from a hard disk drive at startup. The MBR boot code and the VBR boot code are OS-specific. In Microsoft Windows, the MBR boot code tries to find an active partition (the MBR is only 512 bytes), then executes the VBR boot code of an active partition.